Penis disorders

form of sexual dysfunction in males

Priapism is a condition in which a penis remains erect for hours in the absence of stimulation or after stimulation has ended. There are three types: ischemic (low-flow), nonischemic (high-flow), and recurrent ischemic (intermittent). Most cases are ischemic. Ischemic priapism is generally painful while nonischemic priapism is not. In ischemic priapism, most of the penis is hard; however, the glans penis is not. In nonischemic priapism, the entire penis is only somewhat hard. Very rarely, clitoral priapism occurs in women.

Balanitis is inflammation of the glans penis. Balanoposthitis is the proper term when the foreskin is also affected. Balanitis on boys in diapers should be distinguished from redness caused by ammoniacal dermatitis.

Human disease

cancer of the penis

Paraphimosis is an uncommon medical condition in which the foreskin of a penis becomes trapped behind the glans penis, and cannot be reduced (pulled back to its normal flaccid position covering the glans). If this condition persists for several hours or there is any sign of a lack of blood flow, paraphimosis should be treated as a medical emergency, as it can result in gangrene.

rupture of one or both of the tunica albuginea, the fibrous coverings that envelop the penis's corpora cavernosa

A micropenis or microphallus is an unusually small penis. A common criterion is a dorsal (measured on top) penile length of at least 2.5 standard deviations smaller than the mean human penis size for age. A micropenis in adults is equal to when the erected penis is shorter than 7cm (2.7 inches), measures less than 4cm (1.5 inches) when flaccid, and/or when stretched penile length equal to or less than 1.9cm (0.75 in) in term infants, and 9.3 cm (3.67 in) in adults. The condition is usually recognized shortly after birth. The term is most often used medically when the rest of the penis, scrotum

medical condition

Male congenital condition

Aposthia is a rare congenital condition in humans, in which the foreskin of the penis is missing.

congenital defect

medical condition

Chordee is a condition in which the head of the penis curves downward or upward, at the junction of the head and shaft of the penis. The curvature is usually most obvious during erection, but resistance to straightening is often apparent in the flaccid state as well. In many cases but not all, chordee is associated with hypospadias. This is not the same condition as Peyronie's disease, which involves curvature of the shaft of the penis most commonly due to injury during adult life.

a medical emergency that afflicts the penis

disease

thumb|Posthitis Posthitis is the inflammation of the foreskin (prepuce) of the penis. It is characterised by swelling and redness on the skin and it may be accompanied by a malodorous discharge.